CN201124856Y

CN201124856Y - Folding device for baby carriage

Info

Publication number: CN201124856Y
Application number: CNU200720058408XU
Authority: CN
Inventors: 李启明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-18
Filing date: 2007-10-18
Publication date: 2008-10-01
Anticipated expiration: 2017-10-18

Abstract

The utility model discloses a folding device of a baby buggy. The folding device comprises a base frame and a hand-pushing component which is articulated with the base frame; the hand-pushing component comprises a hollow connecting pipe articulated with the base frame, and a hand push rod which is movably sleeved and connected inside the connecting pipe; the folding device also comprises a folding mechanism consisting of a support saddle and a knighthead, the support saddle is arranged on the hand-pushing component and provided with a guide way and a resettable pushing block, and the knighthead which is articulated with the base frame slides along the guide way of the support saddle; wherein, a grab for blocking and fixing the knighthead is arranged on the resettable pushing block, and the grab is positioned in the guide way of the support saddle. Compared with the prior art, the folding device has the advantages that the design structure is simplified, the operation and the use are more convenient and rapid, the securing auto-lock function is realized, the folding which is acted by mistake because of error is avoided, the safety and the reliability are realized, the cost is lowered, and the folding device is more particularly suitable for the structural folding requirements of the baby buggy.

Description

A kind of folding device of perambulator

Technical field

The utility model relates to a kind of folding device, belongs to field of mechanical technique, especially a kind of perambulator folding device with insurance auto-lock function.

Background technology

At present, in a lot of commodity fields,, tend on product, be provided with draw-in and draw-off function in order to make the bigger product of some volumes save parking space and to be convenient to carrying, general way is exactly in the folding and unfolding bending place of product fold mechanism to be set, for example Collapsible pushchair.But in the prior art, the folding device parts of some perambulator are many, complex structure, and manufacturing and operation are all pretty troublesome, and productive costs is also than higher; On the other hand, existing perambulator folding device does not much all insure auto-lock function, and this class folding device can make the bad stability of perambulator, the careless slightly running condition that will change perambulator, use very dangerously, also be unfavorable for the carrying of perambulator.Though also there is partially folded device to be provided with the insurance auto-lock function, improved the stability and the safety of entire product, however these folding device folding and unfoldings and launch all relatively effort, structure is also complicated, is unfavorable for equally promoting the use of.

Summary of the invention

The purpose of this utility model is to overcome shortcoming in the above-mentioned technology with not enough, and a kind of quick, cost-cutting simple in structure, easy for operation, safe and reliable perambulator folding device are provided.

In order to realize above-mentioned target, the utility model is realized by following technical scheme:

A kind of folding device of perambulator comprises pony sill and the hand push parts that are articulated on the pony sill, and the hand push parts are made up of the hollow connection pipe and the handspike of pivot bush unit in connection pipe that are articulated on the pony sill; Also comprise a fold mechanism, comprise and be located at the bearing that has guide groove on the hand push parts and can reset pushing block and be articulated in pony sill upper edge bearing guide groove sliding type braces; Wherein, this this pushing block that can reset is provided with the grab that fixes strut bar, and this grab is positioned at the bearing guide groove.Can reset pushing block can kayser or discharge strut bar, realizes the expansion of fold mechanism or folding, thereby drives the folding and unfolding of perambulator.

The above-mentioned pushing block that resets is articulated on the bearing, has part to expose bearing and pass connection pipe and places in the connection pipe.

Above-mentioned bearing is hinged with an elasticity latch piece.The effect of this elasticity latch piece is to perambulator provides auto-lock function, can make perambulator keep folded state, improves stability, helps carrying.

Above-mentioned elasticity latch piece comprises-guide rail, is located at the bearing top;-shell with guide rail buckle sliding block joint, runs through in it that cross bar being set;-fixture block, hinged with bearing, which is provided with guide groove with above-mentioned cross bar tabling;-retracing spring, the one end is connected with shell, and the other end is connected with baffle plate on being fixed in bearing.Shell slides along guide rail under external force and can drive fixture block and rotate around jointed shaft, and the restoring force of jump ring and retracing spring can guarantee that external force is made the time spent shell and fixture block can return to normal losing.

Further, to be positioned at the part of bearing guide groove be hook-type to described fixture block.

Above-mentioned handspike is provided with the lockout mechanism that the control handspike slides along connection pipe.Lockout mechanism can be controlled handspike along the connection pipe longitudinal sliding motion, thereby realizes the control to the pushing block that can reset, and further controls folding of fold mechanism.

The utility model has compared with prior art been simplified project organization, manipulates more convenient, and have the insurance auto-lock function, can avoid the negative consequence that causes because of error, safe and reliable, reduce cost, and helped carrying, be specially adapted to the folding needs of structure of carriage for children.

In order to understand the utility model more clearly, set forth the specific embodiment of the present utility model below with reference to description of drawings.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the enlarged diagram of A among Fig. 1.

Fig. 3 is the birds-eye view of bearing.

Fig. 4 is the cutaway view of I-I direction among Fig. 3.

Fig. 5 a, 5b are the action effect figure of elasticity latch piece.

Fig. 6 a, 6b can reset the work design sketch of pushing block.

Fig. 7 is the view of the utility model folding process.

Fig. 8 is the view of the utility model opening process.

The specific embodiment

As shown in Figure 1, the utility model comprises pony sill 2 with wheel and the hand push parts 3 that are articulated on the pony sill, the hand push parts are formed by being articulated in hollow connection pipe 32 on the pony sill 2 and the handspike 31 that is sheathed in the connection pipe, and handspike 31 is provided with the lockout mechanism 311 of control handspike along the connection pipe longitudinal sliding motion.

Shown in Fig. 2～4, the hinged place of described pony sill 2 and hand push parts is provided with fold mechanism, and this fold mechanism comprises being located at and has the bearing 1 of guide groove 11 on the hollow connection pipe 32 and be articulated in pony sill 2 upper edge bearing guide grooves 11 sliding type braces 4.One end of bearing 1 utilizes jump ring and bearing pin to be hinged with the pushing block 12 that can reset, this pushing block 12 that can reset is an irregular derby, the part that is positioned at guide groove 11 is a grab 121, and the part of exposing bearing 1 is arc line type and passes connection pipe 32 and place connection pipe 32 inside.The pushing block 12 that can reset under the effect of external force can turn an angle around bearing pin, does the time spent when losing external force, and the pushing block 12 that can reset can return to normal under the jump ring elastic reaction.

Shown in Fig. 3,4, the other end of bearing 1 is provided with an elasticity latch piece 13, this elasticity latch piece 13 comprise the guide rail of being located at bearing 1 top, with the shell 131 of guide rail buckle sliding block joint, be located in the shell, by jump ring and bearing pin and bearing pivotally attached fixture block 132 and retracing spring 133.Fixture block 132 is similarly irregular derby, and the part that is positioned at the bearing guide groove is a hook-type 1321, and the lateral surface of this hook-type 1321 is formed slopely spigot surface inwards; Also be provided with guide groove 1322 on the fixture block 132, be installed with the cross bar 1311 that runs through guide groove on the shell 131; Retracing spring 133 1 ends are connected with shell 131, and the other end is connected with baffle plate on being fixed in bearing.Elasticity latch piece shell 131 can drive fixture block 132 along the guide rail sliding extension under external force and rotate around jointed shaft, with kayser or release strut bar, for perambulator provides a kind of auto-lock function, and helps carrying.

Shown in Fig. 5 a, when pulling out elasticity latch piece shell 131, the cross bar 1311 that runs through guide groove is outward movment thereupon, drives fixture block 132 and rotates around jointed shaft, and fixture block hook-type 1321 slowly withdraws from bearing guide groove 11; When pulling shell 131 acquired a certain degree, fixture block hook-type 1321 withdrawed from bearing guide groove 11 fully, and strut bar 4 loses the kayser effect of fixture block 132 and slides along guide groove 11; Shown in Fig. 5 b, after strut bar 4 discharges, decontrol shell 131, shell 131 loses tension, return to normal under retracing spring 133 restoring force effects, and fixture block 132 also rotates under jump ring restoring force and shell 131 drives, fixture block hook-type 1321 places in the guide groove 11 again.

Running condition of the present utility model is as described below:

As shown in Figure 2, the utility model is in complete deployed condition, and the fulcrum of strut bar 4 is built in the grab kayser of an end of bearing 1 guide groove 11 and the pushing block that can be resetted, and this moment, strut bar 4 maintained static, and whole folding device launches fully.

Shown in Fig. 6～7, in the time will folding this perambulator, as long as push the lockout mechanism on the handspike, handspike 31 is just along connection pipe 32 vertically past lower slider, can the reset inclined-plane of pushing block 12 of contact, make it to rotate (shown in Fig. 6 a), when handspike 31 tail ends slip over can reset pushing block 12 inclined-planes the time, the grab 121 that fixes strut bar 4 fulcrums rotates to bearing 1 outer (shown in Fig. 6 b).The strut bar 4 that loses the kayser effect slides along guide groove 11, until the fixture block hook-type 1321 that contacts elasticity latch piece 13, because fixture block hook-type 1321 lateral surfaces are the bevelled spigot surface, under the effect of perambulator own wt, fixture block is subjected to strut bar 4 extruding can slowly rotate and withdraw from guide groove 11 automatically, when fixture block hook-type 1321 withdraws from guide groove 11 fully, strut bar 4 slidably arrives the tail end of guide groove 11, afterwards, fixture block is got back in the guide groove 11 under jump ring and the effect of retracing spring restoring force again and kayser is lived strut bar 4, make perambulator be in stable folded state, be beneficial to carrying.

As shown in Figure 8, when needs are opened this folding device, the shell 131 of the elasticity that pulls outward latch piece, shell 131 slides and compression reseting spring along guide rail, cross bar on the shell 131 drives fixture block and rotates, make fixture block hook-type 1321 withdraw from guide groove 11, handle push part simultaneously makes progress, strut bar 4 slides along guide groove 11 after losing the kayser effect of fixture block hook-type 1321, decontrol elasticity latch piece shell 131, shell 131 returns to normal and drives fixture block under jump ring and the effect of retracing spring restoring force and comes back to guide groove 11, and strut bar 4 continues to slide until the grab 121 that contacts the pushing block that can reset along guide groove.Because grab 121 lateral surfaces are the bevelled spigot surface, therefore continue up handle push part, strut bar 4 just can order about grab 121 rotations and withdraw from guide groove 11, after strut bar 4 was crossed grab 121, grab 121 placed in the guide groove 11 under the jump ring effect equally again and blocks strut bar 4 and keep the deployed condition of strut bar 4.

The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not broken away from spirit and scope of the present utility model, if these are changed and modification belongs within claim of the present utility model and the equivalent technologies scope, then the utility model also is intended to comprise these changes and modification.

Claims

1, a kind of folding device of perambulator, comprise pony sill (2) and be articulated in hand push parts (3) on the pony sill, the hand push parts are made up of the hollow connection pipe (32) and the handspike (31) of pivot bush unit in connection pipe that are articulated on the pony sill, it is characterized in that: also comprise a fold mechanism, comprise and be located at the bearing (1) that has the guide groove (11) and pushing block (12) that can reset on the hand push parts and be articulated in pony sill upper edge bearing guide groove sliding type braces (4); Wherein, this pushing block (12) that can reset is provided with the grab (121) that fixes strut bar, and this grab is positioned at the bearing guide groove.

2, the folding device of a kind of perambulator according to claim 1 is characterized in that: the described pushing block that resets (12) is articulated on the bearing, has part to expose bearing and pass connection pipe and places in the connection pipe.

3, the folding device of a kind of perambulator according to claim 1 is characterized in that: described bearing (1) is hinged with an elasticity latch piece (13).

4, the folding device of a kind of perambulator according to claim 3 is characterized in that: described elasticity latch piece (13) comprising:

-guide rail is located at the bearing top;

-shell (131) with guide rail buckle sliding block joint, runs through in it that cross bar (1311) being set;

-fixture block (132), hinged with bearing, which is provided with guide groove (1322) with above-mentioned cross bar (1311) tabling;

-retracing spring (133), the one end is connected with shell, and the other end is connected with baffle plate on being fixed in bearing.

5, the folding device of a kind of perambulator according to claim 4 is characterized in that: the part that described fixture block (132) is positioned at the bearing guide groove is hook-type (1321).

6, the folding device of a kind of perambulator according to claim 1 is characterized in that: described handspike (31) is provided with the lockout mechanism (311) that the control handspike slides along connection pipe.